Number of n X n binary arrays with top left element equal to 1 and no two ones adjacent horizontally or nw-se.
A228790
Number of n X n binary arrays with top left element equal to 1 and no two ones adjacent horizontally or nw-se.
Terms
- a(0) =1a(1) =2a(2) =36a(3) =586a(4) =37944a(5) =3835792a(6) =1104367784a(7) =619684261316
External references
- oeis: A228790